diff options
| -rw-r--r-- | src/plugins/nat/nat.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c index 959abd7ebbf..2ed65a13974 100644 --- a/src/plugins/nat/nat.c +++ b/src/plugins/nat/nat.c @@ -1428,6 +1428,12 @@ int snat_interface_add_del (u32 sw_if_index, u8 is_inside, int is_del) if (sm->out2in_dpo && !is_inside) return VNET_API_ERROR_UNSUPPORTED; + pool_foreach (i, sm->output_feature_interfaces, + ({ + if (i->sw_if_index == sw_if_index) + return VNET_API_ERROR_VALUE_EXIST; + })); + if (sm->static_mapping_only && !(sm->static_mapping_connection_tracking)) feature_name = is_inside ? "nat44-in2out-fast" : "nat44-out2in-fast"; else @@ -1579,6 +1585,12 @@ int snat_interface_add_del_output_feature (u32 sw_if_index, (sm->static_mapping_only && !(sm->static_mapping_connection_tracking))) return VNET_API_ERROR_UNSUPPORTED; + pool_foreach (i, sm->interfaces, + ({ + if (i->sw_if_index == sw_if_index) + return VNET_API_ERROR_VALUE_EXIST; + })); + if (is_inside) { vnet_feature_enable_disable ("ip4-unicast", "nat44-hairpin-dst", |